I have had a WiiU from day one, and it has been tremendous. Once the software glitches and such from the launch were patched it became fast, responsive and elegant. I have a great catalogue of games for it Monster Hunter Ultimate, Lego City, Splinter Cell, ACIII, Rayman, Mario, Pikmin and many others. I highly recommend this system, it is just plain fun. And with bundles like Windwalker for 300 bucks, it is a hell of a deal. if you buy now, there is a decent catalogue, full backwards compatibility with all Wii titles, and no launch hassles. It definitely has a place in my home right beside the Steambox that is going in the living room. And with USB 2 TB drives so dirt cheap I have downloaded all games except for COD which was not available as a download.
So I agree with the OP, this is a great time to get one while wiating for launch glitches to be ironed out and software catalogues to build up on the other consoles.